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P. KLEINEIDER.

WATER COOLED REFRIGERATOR. APPLICATION FILED SEPT-25, I9l8- 1,3 1 0,665. Patented July 22, 1919.

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T -& WITNESSES: K} \1 T INVENTOH ATTORNEY THE COLUMBIA PLANOGRAPII co., WASHINGTON, n. C.

PETER KLEINEIDER, OF CUDAHY, WISCONSIN.

WATER-COOKED REFRIGERATOR.

Specification of Letters Patent.

Patented July 22 1919.

Application filed September 25, 1918. Serial N 0. 255,656.

To all whom it may concern:

Be it known that I, PETER KLEINEIDER, a citizen of the United States, and resident of Gudahy, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in VVater- Cooled Refrigerators; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to new and useful improvements in refrigerators of that type wherein a jacket of cooling fluid surrounds the refrigerator chamber, to cool the same and at the same time. afford an insulating jacket for the chamber.

It is in general the object of my invention to simplify and otherwise improve the struc ture and to increase the cooling efliciency and convenience of operation of devices of this character.

A further and important object resides in the provision of a refrigerator structure adapted to contain a maximum amount of cooling fluid, and wherein the fluid spaces of the structure are so disposed as to procure and retain a maximum cooling action with respect to the refrigerator chamber.

A further object resides in the provision of means for setting up a most positive flow of cooling fluid through the refrigerator structure.

A still further object resides in the provision of an improved arrangement for venting the fluid spaces of the structure in the various cooling operations which may be employed.

With the above and other objects and ad vantages in view, which :will be apparent as the description proceeds, my invention resides in the novel features of construction, combination and arrangement of parts as hereinafter more particularly defined and claimed.

In the accompanying drawings:

Figure 1 is a vertical sectional view through a refrigerator constructed in accordance with my invention.

Fig. 2 is a horizontal sectional view there through on the line 2-2 of Fig. 1.

Referring now more particularly to the accompanying drawings, there is provided an outer casing including top and bottom walls 5 and 6, the rear wall 7, side walls 8 and a front wall portion 9 recessed for the reception of a suitable insulated door 10, the inner recessed portions of this front wall being connected to the front wall portion 11 of an inner casing disposed within and spaced from the outer casing and including the side walls 12, top and bottom 13 and 1% and rear wall 15. The opposed wall portions of these inner and outer casings are connected and mutually braced by skeleton frames 15, which are of such form as to permit ready passage-of fluid therethrough, so as not to interfere with circulation of fluid in the jacket formed by the two casings and thus entirely surrounding the refrigerating chamber defined by the inner casing.

To provide a maximum content of insulating fuid in therefrigerator structure, a fluid chamber is formed transversely as a partition in the refrigerating chamber, and to effect this structure in the present embodiment, a single sheet metal plate is bent centrally on itself and disposed in the refrigerating chamber to form the top and bottom 16 and 17 respectively, of the fluid chamber, the ends of the plate being secured in spaced relation to the rear wall 15 of the inner casing, while the intermediate portion of the plate is disposed inwardly of and adjacent the door space. The sides of the plate are secured to the side walls 12 of the inner casing above and below horizontally elongated openings 18 in said walls, whereby free access of fluid from the side jacket spaces is provided. To permit circulation of air through the fluid chamber to equalize temperatures in the upper and lower portions of the refrigerating chamber, the top and bottom of the refrigerating chamber are provided with elongated vertically alined sets of slots 19 extending from one side of the inner casing to the other side, and disposed between the top 16 and bottom 17 of the fluid chamber are partition and brace strips 20, each strip being bent upon itself and having its bight portion secured to one of the walls 12, with its end portions secured to the other end Wall 12 and having its sides bent to form flanges for securement to the top 16 and bottom 17 atthe sides of the slots 19, the side edges of said slots being disposed in planes substantially including the ends of the slots 18 of the walls 12, whereby the portions of the strips 20 are spaced apart distances equal to the spaces between the slots 18, and the bight portion of each strip extends bctweenithe ends of an adjacent pair of slots 18.

A simple and strong arrangement is thus provided whereby, without interfering substantially with circulation of air in the refrigerating chamber, a portion of the cooling fluid may be disposed intermediately in the chamber, to thus impart a maximum cooling action, since none of the cooling efliciency of the fluid thus disposed is dissipated directly into the atmosphere.

For supplying water or other cooling fluid to the cooling spaces of the refrigerator, :1

supply pipe 21 extends through the lower portion of the rear outer casing wall 7 and this pipe terminates in a jet nozzle 22 extending between the bottoms 6 and 14: of the inner and outer casings, the pipe being also provided outwardly of the refrigerator with a suitable control valve 23. Cooling fluid may be conveyed from the fluid spaces either through a drain 24 depending from the bottom wall 6 of the outer casing or through a pipe 25 extending from a valve 26 which has its port in conununication with an outlet casing 27 upstanding at the rear portion of the top 5 of the outer casing, the casing of the. valve being preferably integral with this outlet casing, and a by-pass 28 through the valve is provided from the upper portion of the outlet casing 27. An outlet port is formed in the top of the casing 27 through which projects a valve stem 29 which is slidable in the spider 30 formed at the top of the casing, said valve stem carrying a valve head 31 adapted to close said port, and also carrying a float 32 adapted to lift the stem to c1osing position upon raising of the water level above the valve, it being noted that the normal position of the float is above the inlet port of the valve. To meet differing temperature conditions either of the water or the atmosphere, the cooling efficiency of the refrigerator may be retained either by a continuous flow of cooling fluid therethrough, or by successive charges of cooling fluid at necessary intervals. With respect to a continuous flow, it is noted that, w1th the valve 26 open, and upon a continuous supply of water or other fluid through the pipe 21, the warm water or other fluid will gradually rise through the spaces of the refrigerator and be discharged through the pipe 25, it being noted that the diameter of the pipe 25. is considerably larger than the diameter of the pipe 21, whereby to provide a free discharge Copies of this patent may be obtained for and prevent the building up of pressure within the fluid spaces which might strain the structure, the service water of various communities having a considerably high pressure.

In cooling by successive charges of water, the previous charge may be permitted to pass off through the pipe 25 by the influx of fresh cold water, or it may be taken off from the drain 2% prior to introducing this fresh charge of water. WVhen the fresh charge of water is introduced under this latter condition, the air in the fluid spaces is vented through the port of the outlet casing 27, and when the fluid spaces are filled, the valve stem 29 will rise to close the air port, thus giving a visual signal of the filling of the fluid spaces, any surplus fluid passing out through the by-pass 28, the valve 26 being under these conditions closed.

What is claimed is:

1. A refrigerator of the class described comprising an outer casing, an inner casing disposed in the outer casing and forming a refrigerating chamber, and a cooling fluid chamber in the refrigerating chamber, including a top and bottom secured to the inner and rear walls of the casing, openings in the side wall of the inner casing between said top and bottom of the fluid chamber, openings in said top and bottom between the first named openings, and partitions at the sides of the second named openings extending to the side walls of the inner casing at the ends of the openings of said side walls.

2. A refrigerator of the class described including an outer casing, an inner casing disposed in the outer casing, and forming a refrigerating chamber, and a plate bent centrally upon itself to form the top and bottom of a cooling fluid chamber and disposed intermediately in the inner casing, with its sides secured to the side walls of the inner casing and its ends secured to the rear wall of the inner casing, said side walls of the in nor casing being provided with openings between the fluid chamber top and bottom, pairs of partitions in the fluid chamber between said apertures and said top and bottom being provided with an opening between the partitions of each pair.

In testimony that I claim the foregoing I have hereunto set my hand at Cudahy, in the county of Milwaukee, and State of Wisconsin.

PETER KLEINEIDER.

five cents each, by addressing the Commissioner of Eatents, Washington, D. G. 

